Bolt-cutter



(No Model.)

W. L. BUTCHER.

BOLT CUTTER.

No. 448,324. Patented Mar. 17,1891.

UNIT D STATES PATENT OFFICE.

WILLIAM L. DU'llO-IIER, OF ROME, NEW YORK.

BOLT-CUTTER SPECIFICATION forming part of Letters Patent No. 448,324, dated March 17, 1891. Application filed November 12, 1890. $eria1No. 371,157. (No model.) Patented in Canada March 17, 1890, No. 33,945.

To aZZ whom it may concern:

Be it known that I, IVILLIAM L. DUTCHER, of Rome, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Bolt- Cutters, (for which Letters Patent of the Dominion of Canada, No. 33,945, dated March 17, 1890, were granted to IVilliam L. Butcher and Moses M. Davis and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form part of this specification.

My invention relates to an improved boltcutter.

In the drawings which accompany and form a part of this specification, and in which similar letters and figures of reference refer to corresponding parts in the several figures, Figure 1 shows my improved bolt cutter, the jaws being open or partially so. Fig. 2 shows the same in closed position. Fig. 3 shows the jaws on a larger scale than that of Figs. 1 and 2 and an end view of thesame as seen from the left. Fig. 4: shows an end view of each of the operating-lever handles separated and also together. Figs. 5 and 6 show portions of the operatinglever handles. Fig. 7 shows adj Listing-blocks used in the device. Fig.8 shows a bearing-pin used in the cutter. I

Reference being had more specifically to the reference-numerals marked on the drawings, 1 and 1 are the lever-handles pivoted to each other and to the cutting-jaws 2 and 2. The cutting-jaws 2 and 2 are provided with straps 3 upon either side, as shown in Fig. 3, and are pivoted in. the straps at 5 and (i. The jaws 2 and 2 are each provided. with a semicircular recess, which together are adapted to receive cylindrical bearing-pin n, which when in position preventlateral movement of 'the jaws 2 and 2 with reference to each other. The handle-lever 1 has apair of cars 4, adapted to receive the projecting portion 5 of handle-lever 1. The projecting portion 5 of the handle is recessed to receive the adj usting-block G. IVith each pair of cutters I provide a series of adjustingblocks, as shown at Fig. 7, having recess 00, adapted to engage upon projection 7 of the lever-handle and prevent rotation of thcblock. In the block is provided an opening y for the pivotal pin between the lever-handles, and in the several blocks the pivotal pin is located substantially in the center, as shown in the lower portion of Fig. 7, or adjacent to the recess or cut-away part no, as shown in the middle portion of Fig. 7, or on the opposite side of the block, as shown in the upper portion of Fig. '7. The block, together with the projecting portion 5 of the handle I, is received between the ears of the lever-handle 1, and the pivotal pin is inserted through the opening .2 in the cars a and y in the adjustingblock. On either side of the ears 4 and mounted on the pivotal pin between the lever-handles are washer-plates a a, Fig. 4, of larger diameter than the ear 4, and are adapted to close the space between the edge of the ears 4: and a similar recess in the side of the lever on each side of the proj cation 5 and prevent foreign substances entering the space that would otherwise be left in securing the several adjustments hereinafter explained. A buffer 10 isprovided upon one of the handles mounted upon adj usting-screw, whereby the movements of the handles together to close the jaws can be limited.

Vith each pair of tongs I provide several adjusting-blocks, as shown in Fig. 7, and when the tongs are new the adj Listing-block having the pivotal opening nearest to the re cess 00 is used and the adjusting-screw 10 is in its most projected position. As the tongs become worn from use, the screw 10 is screwed farther into the handle, allowing the edges to come together until the limit of adjustment by the screw 10 is reached, when the tongs are taken apart at the pivotal point between the lever-handles 1 and l, and the block having the pivotal opening farther from the recess as is substituted for the one theretofore in use, and the screw 10 is again run outto its most projected position, when the tongs will be found to have their jaws completely closed when the lever-handles are closed. They are then used in this way until the jaws become so worn as to necessitate the use of another adjusting-block, having pivotal point still farther from the recess a: in the side thereof.

It is evident that instead of the projection 7 a pin might be used entering an opening, as a, in the side of the adjusting-block and a similar one in the side of the lever-handle l, and that other alterations and changes in and from the construction described may be made without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is

1. The combinationfin a bii cutteiyof the cutting-levers pivoted in straps and having a semicircular recess in each between the straps, a cylindrical bearing-pin adapted to enter the recesses and prevent lateral movement of the jaws with reference to each other, and the operating-lever handles pivoted to each other and to the ends of the cuttingjaws, substantially as set forth.

2. The combination, with a bolt-cutter, of the cutting-levers pivoted in straps engaging upon either side thereof, the semicircular recess in each jaw substantially in line between the pivotal points of the cutting-levers, the bearing-pin within the semicircular recess for preventing lateral movement of the jaws with reference to each other, the operating-lever handles pivoted to each other and to the ends of the cutting-levers, substantially as set forth.

8. The combination, in a bolt-cutter, of the cutting-jaws pivoted in straps upon each side thereof, operating-lever handles pivoted to the cutting-levers, and the adjusting-blocks adapted to be placed in the joint between the lever-handles, substantially as set forth.

4. The combination, in a bolt-cutter, of the cutting-levers pivoted in straps engaging upon either side thereof adjacent to the cutting-edges, the semicircular recesses in each cutting-lever substantially in line between the pivoted point of the jaws, the bearing-pin engaging in the semicircular recesses and adapted to prevent lateral movement of the cutting-levers with reference to each other, the lever-handles pivoted to each other and to the cutting-jaws, and the adjusting-block adapted to be inserted in the joint between the lever-handles, substantially as set forth.

5. The combination, in a bolt-cutter, of the cutting-levers pivoted in straps engaging upon either side thereof adjacent to the cutting-edges, the semicircular recess in each cutting-lever substantially in line between the pivotal points of the cutting-levers, the bearing-pin in the semicircular recesses to prevent lateral movement of the jaws with reference to each other, the operating-lever handles pivoted to the ends of the cuttinglevers and to each other, the adj ustingblocks in the joint between thelever-handles, and the projection for preventing the rotation of the adjusting-block, substantially as set forth.

6. The combination, in a bolt-cutter, of the cutting-levers pivoted in straps engaging upon either side thereof adjacent to the cutting-edges, the semicircular recesses in each of the cutting-levers substantially in line between the pivotal points thereof, the bearingpin within the semicircular recesses, the leverhandles pivoted to each other and to the ends of the cutting-levers, the adj ustingblock adapted to be used in the joint between the lever-handles, and the adj ustable buffer upon the lever-handle, substantially as set forth.

7. The combination, in abolt-cutter, of the cutting-levers pivoted in straps, the semicircular recesses in each cutting-lever substantially in line between the pivotal points thereof, the bearingpin within the semicircular recesses and adapted to prevent lateral movement of the cutting-levers with reference to each other, the operating-handles pivoted to the cutting-levers and to each other, the adj Listing-blocks adapted to be inserted in the joint between the operating-lever handles, and the protecting-washer over the joint between the operating-lever handles, substantially as set forth.

8. The combinatiomin a bolt-cutter, of the cutting-levers pivoted in straps engaging upon either side thereof adjacent to the cutting-edges, the semicircular recess in each of the cutting-levers substantially in line between the pivotal points, the bearing-pin within the circular recesses adapted to prevent lateral movement of the jaws with reference to each other, the lever-handles pivoted to the cutting-levers and to each other, the adj Listing-blocks adapted to be inserted in the pivotal joint between the operatinglevers, the protecting-washer over the joint between the pivotal levers, and the adjustable buffer in the operating-lever handles, substantially 

